Mechanical Characterization of Nanofiber-Reinforced Composite Adhesives

Authors: Xu, L. Roy; Li, Lang; Lukehart, Charles M.; Kuai, Huacheng

Source: Journal of Nanoscience and Nanotechnology, Volume 7, Number 7, July 2007 , pp. 2546-2548(3)

Publisher: American Scientific Publishers

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Abstract:

Tensile and shear strength tests of metal/metal and polymer/polymer joints featuring a new functionalized nanofiber/epoxy composite adhesive were conducted. Strength increase is not as high as we expected (only up to 30%) although we used GCNF-ODA reactive linkers to improve the interface. The moderate strength increase is due to high interfacial stress developed in nanocomposites because of the high stiffness property mismatch, and inefficient interfacial shear stress transfer through shear-lag mechanism. In order to design strong nanocomposite materials, continuous or at least aligned nanofibers/nanotubes should be employed.

Keywords: ADHESIVE JOINTS; NANOCOMPOSITE MATERIALS; GRAPHITE NANOFIBERS; MECHANICAL PROPERTY

Document Type: Short communication

DOI: http://dx.doi.org/10.1166/jnn.2007.433

Publication date: 2007-07-01

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Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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